dan quayle and lloyd bentsen of texas. the two vice presidential candidates were 25 years apart in age which provided one of the defining moments. the debate was held in omaha and was moderated by pbs's judy woodruff. >> on behalf of the commission on presidential debates, i am pleased to welcome you to this vice presidential debate. i'm judy woodruff of pbs' "macneil-lehrer news hour" and "frontline." my colleagues on the panel are -- john margolis of "the chicago tribune," tom brokaw of nbc news, and brit hume of abc news. the importance of tonight's debate is underscored by two facts. both george bush and michael dukakis said their selections of a running mate would reveal a lot about themselves. and based on the history since world war ii, there is almost a 50-50 chance that one of the two men here tonight will become president of the united states. the candidates are senator dan quayle, the republican nominee, and senator lloyd bentsen, the democratic nominee. [applause] >> for the next 90 minutes we will be questioni